Document is current

Article History

First Online: 3 June 2019

Ethics approval and consent to participate

: The studies included in this issue were all approved by ethical boards/committees. All manuscripts have information on how each country research followed appropriate safeguards to protect the research subjects, including participant privacy and confidentiality, the risks and benefits of research and how research findings would be shared.

: The authors of this article formed the editorial team for this Supplement. Supplement Editors did not peer review or contribute to editorial decisions about any article on which they are named as an author, as per BMC policy. The authors declare they have no other potential competing interests.

: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.